.countdown-num {
    display: inline-block;
    width: 35px;
    height: 35px;
    background: url(../imgs/countdown-bg.png) no-repeat center center;
    background-size: 100%;
    border-radius: 4px;
    font-size:18px;
    color:#fff;
    line-height: 35px;
    text-align: center;
}

.countdown-text {
    color: #363636;
}

span {
    margin-right: 5px;
    vertical-align:middle;
}